SatSig topic:

Linkstar S2A,S2 (DvB S2A,S2)

(Read 9259 times)

Jun 19^th, 2008 at 8:38am

Dear All Engineer Vsat

Can your help me my modem linkstar S2 display show ?

a. Password:I2C Read Failed HuhWhats that mean ?

and Parameter modem

tcmp
Standard DVB-S2 Synced 0
BCHCorrectedErrCount 458745 BCHUncorrectedErrCount 458745
UncodedBER 0.00006173122 I2CErrorCount 2
LostSyncCount 0 TimeSynced 0
TimeUnSynced 0 MaxTimeSynced 0
CarrDeviation 0.0004062168   NCODeviation 0
LdpcBch LOCKED CarrierPhase LOCKED
frequency 0 ModCode N/A
Rs   0 Fs 0
RxPower 3 EbNo 0
Pilot   Off FrameLength 64800

pconf
KSET BootConf
Item 1. Addr 2193e0, Key 0 0x0 ItemMark 1 ArrayPos 0
termid 0x2acc8 popid 0x11e0002
ctlPID 0x1029 pcrPID 0x365
TDMCarrierFreq 1485375 SymbolRate 2500000
MaritimeEnabled 0 Latitude 0
Longitude 0 TxPower -20
ODUStatus   INTERNAL VCXOPar1 0x0
VCXOPar2 0x0 TimingLoopBW 0x0
Signature 0x0 isEncryptionEnabled 0
isRnccKeyValid 0 isRcstKeyValid 0
PointingTool 0 LNBVoltage 18
LNBVoltageIncrease 0 LNBToneOn 0
DVBMode DVBS2 vcoplan 0

b. the RX power= 3 can not recive from hub, rx output 18 VDC,and led power on, led odu on, led alrm off, led sat off.but in command tcmp not show the freq ?>?

if any know thats problem please email to me in nurdin.kamaludin@gmail.com
Tankyu

Best regards,

nurdin
Ym : nun1996@yahoo.com

Jun 19^th, 2008 at 10:21am

Is the symbol rate correct ?

2500000 may be correct if you are in a small network.
Large networks tend to use symbol rates like 25000000

Best regards, Eric.

Jun 26^th, 2008 at 3:55am

Dear Mr. Erick

This is configuration exciting . i capture from my sellf,....

03 11 9E

Tanggal 23 juni 2008

pconf
KSET BootConf
Item 1. Addr 21c6a8, Key 0 0x0 ItemMark 1 ArrayPos 0
termid 0x3119e popid       0x11e0003
ctlPID 0x1029 pcrPID    0x365
TDMCarrierFreq    1485375 SymbolRate    2500000
MaritimeEnabled    0 Latitude    0
Longitude    0 TxPower    -10
ODUStatus    INTERNAL VCXOPar1    0x0
VCXOPar2    0x0 TimingLoopBW    0x0
Signature 0x0 isEncryptionEnabled       0
isRnccKeyValid    0 isRcstKeyValid    0
PointingTool 0 LNBVoltage 18
LNBVoltageIncrease 0 LNBToneOn    0
DVBMode DVBS2 vcoplan       0

tcmp
Standard       DVB-S2 Synced 1
BCHCorrectedErrCount 7833154 BCHUncorrectedErrCount    1222
UncodedBER    0.0006137625 I2CErrorCount       0
LostSyncCount       0 TimeSynced       1747
TimeUnSynced 0 MaxTimeSynced    1747
CarrDeviation       0 NCODeviation 0
LdpcBch LOCKED CarrierPhase LOCKED
frequency 1485 ModCode    8PSK 3/4
Rs    2.500000 Fs    100
RxPower    -39.13000 EsNo 16
Pilot On FrameLength    64800

BER 0.0006137625
Buffer Level 0

The symbol rate is true 2500000

rgds,
nurdin

Jun 26^th, 2008 at 8:40am

Is it working normally now ?

Don't worry about the uncorrected error counts unless they are actually increasing. Repeat tcmp command and see if the uncorrected error count has increased. When you power on the modem, the count is zero. After start up the count may have increased during the initial carrier acquisition. Any interruption of the beam, pointing movements etc will also create outages and increase the count, as will severe rain attenuation. The uncorrected error count may stay the same for several or many hours.

Best regards, Eric.

Jun 26^th, 2008 at 10:20am

Dear Mr. Erick

I use two antena & two modem in the same time & same place to know the modem is normali or not, but one modem is not good & then other modem is good/normal.
FYI in the modem linkstar S1 if this case same i replace Tuner IC MAX21... and then its normal again. but in the modem S2 and S2A i dont know to repair because the tuner ic is not same with Linkstar S1. can your tell me which one ic tuner i have to replace if the modem S2 dosen't recive. the ic = STB0899 or STB6100 ?

Best Regards,

Nurdin

Jun 26^th, 2008 at 11:36am

I don't know.

You could try contacting ViaSat directly for tech support regarding repairs. They have a LinkStar repair centre at Skylogic in Italy, and in the US. They may insist that you send the entire modem for repair using their RMA procedure. Find out the cost in advance since the cost may be not far short of that for a new modem, so consider simply getting a new modem also.

Best regards, Eric.

Jun 27^th, 2008 at 8:50am

dear eric,

my modem show :
COSMON Status: LossOfClock
and rebooting after show that ?
if the modem not reboot show :
Password:
Password:
Password:
Password:
Password:
can you tell me whay ?

rgds,

nurdin